The Bi-level Programming Model of Load Transferring Strategy Based on Topological Units of High-voltage Distribution Network

A load transferring strategy for High-voltage distribution network (HVDN) is presented in this paper to mitigate operation congestion in urban power system. A novel bi-level programming model based on topological units (group) is established in this paper instead of traditional intelligent algorithm with 0-1 integer variables. In the upper level, the balance factor is defined to guide the reasonable load allocation of the system, while the load shedding factor is to coordinate the unbalance between transformer capacity and load in emergency; In the lower level, the supply channel matrix is used to execute orders from upper and feedback the results. The simulation using proposed models is verified in simplifying decision space which is very suitable for online analysis.